Tool attachment.



enomn mirror, or oEn'AavALn, KANSAS.

TOOL ATTACHMENT.

Specification of Letters Patent.

. Patented May 7, 1912.

Application ma September 27, 1911. Serial No. 651,600.

To all whom it may concern:

Be it known that I, GEoRo BEUOY, a citizen of the United States, residing at Cedar Vale, in the county of Chautauqua and State of Kansas, have invented certain new and useful Improvements in Tool Attachments, of which the following is a specification, reference being had to the accompanying drawings.

This invent-ion relates to instruments or tools of that character which embody two opposed spring held operating elements and has for its principal object the provision of simple and novel means which acts automatically when said elements are separated to retain the same in their relative positions against the action of the sprin holding means which normally acts to ho d the operating elements in closed position.

Another object of the invention is to provide a device of the above character which is applicable to various tools or instruments embodying opposed spring held operating members, whlch will hold said members open so that continued pressure upon the same is not required and which may be easily and conveniently actuated to release said members so that they may move to their closed positions and grasp an object which is arranged between them.

Still another object of the invention is to provide a device for the above purpose which is simple and inexpensive in construction, and materially increases the ease and facility with which the tool or instrument may be operated.

\Vith the above and other objects in view, the invention consists of the novel features of construction, combination and arrangement of parts hereinafter fully described and claimed, and illustrated in the accompanying, drawings, in which' Figure 1 is a side elevation of my improvements showing the same applied to a caponizing instrument; Fig. 2 is an edge view; Fig. 3 is a section taken on the line 3-3 ofFig. 1; and Fig. 4 is a detail perspective view of the holding member.

In the accompanying drawing I have shown my improved holding device applied to a caponizing instrument for removmg one of the vital organs of the fowl, but it will be understood that the device is also applicable to' a spreader which is employed for holding theopposite edges of the incision in the side of the fowl ppen, curling its release position.

irons, fruitpicking tongs and various other tools or instruments which embody a pair of opposed operating members whichare normally held closed by means of a spring. The instrument shown in the drawing is formed from a single length of wire, which is bent intermediate of its ends to provide a spring coil 5. The wire rod of which the instrument is formed is extended from opposite sides of the coil 5 and in parallel relation as indicated at 6 and the -forward ends of said parallel portions of the rod are inwardly disposed and crossed as shown at 7. At the point of intersection of the crossed portions of the rod, the contacting surfaces thereof are flattened as at 8, said flattened surfaces extending longitudinally upon the angularly disposed portions of the wire rod to form the spaced shoulders 9 which limit the movement of the end portions of the rod with respect to each other. 'The ends of the rod are longitudinally extended and disposed in close parallel relation as indicated at 10, the extreme end portions thereof being angularly bent in opposite directions as shown at 11 in Fig. 2 and provided with the oppositely extending hooks 12. These hooked endsof the wire rod are normally disposed in close engagement upon each other, in which positions they are yieldingly held by means of the spring coil 5.

To one of the longitudinally extending portions 6 of the wire rod at its forward end adjacent to the inclined portion 7 thereof, a holding member 13 is pivoted at one of its ends. This member is formed from a length of Wire and at its other end is provided wit-h an open loop 14 which surrounds or embraces the opposite longitudinally extending portions 6 of the rod. This wire is formed with afinger-piece 15 adjacent to the loop for engagement by the thumb of operator to move the holding member to An eye 16 is also formed in the wire holding member and to said eye one end of a colled spring connected, the other .end of said spring being attached to the spring coil 5 of the tool or instrument.

The operation of the device is substantia'lly as follows. The operator presses the opposed parallel portions 6 of the instrument inwardly toward each other, and the spring 17 which is normally under tension forces the holding member 13' at its free nd along the. 'rod until it is disposed trans sired to release the operating members so.

that they are closed under the action of the spring coil 5, the operator simply engages the finger-piece 15 on the end of the member 13 with his thumb and forces the same forwardly until the loop 14 is disposed upon the inclined portion 7 of the wire rod, the separation of the body portions (3 of said rod under the action of the spring 5 forcing the looped end of the holding member farther along the inclined portion 7 of the rod until it is disposed, in the position shown in full lines in Fig. 1, and the coiled spring 17 is placed under tension and disposed centrally between the parallel portions 6 of the rod and in parallel relation therewith.

It will thus be seen that I have devised a very simple and highly efiicient device which may be easily and quickly actuated by the operator to release the opposed operating members. As the holding member 13 is automatically moved into position by means of the spring 17 and is held by said spring to maintain the operating members in separated relation, the device may be easily and freely manipulated as no, pressure of the operators fingers is required.

From the foregoing it is thought that the construction and manner of use of my improved instrument will be fully understood.

As the improvement consists of only two elements which are extremely simple in form, it will be obvious that the device may i be manufactured at a very small cost. It is also highlyv durable, positive in its action and efiicient in practical use.

While have shown and described the preferred form and construction of the device, it will be understood that the same is susceptible of various modifications without departing from the essential feature or sacrificing any of the advantages thereof.

Having thus described the invention what is claimed is The combination with an instrument comprising a pair of opposed spring held operating members having parallel portions and inclined crossed portions, of a holding member formed from a single length of wire pivotally connected to one of said operating members adjacent to its inclined portion and having an eye formed intermediate of its ends, the other end of said holding member being provided with a l open loop to receive the inclined portion'qof the other operating member and for movement thereon, and a coiled spring loosely connected to the instrument at one end and having its other end attached to the eye of said holding member, said spring being disposed between the parallel portions of said members and laterally movable therebetween in the movement of the holding member, said spring normally act-ing to retain said holding member in position at right angles with relation to the longitudinal axis of the instrument and its free endioil of the inclined portion of the-operating member to hold said members in separated relation, the looped end of said holding member being moved along the inclined portion of the operating members in the movement of said members to their closed positions, whereby the coiled spring is placed under tension to move said holding member I to its effective position when the operating members are forced apart.

In testimony whereof'l. hereunto affix my signature in the presence of two witnesses.

GEORGE BEUOY.

Witnesses:

FAY WEBB, H. M. DONELSON. 

